Capping milk bottles and other containers



April 30, 1929. w. L. WRIGHT CAPPING MILK BOTTLES AND OTHER CONTQINERSOriginal Filed July 12, 1923 Patented Apr. 30, 1929.

PATENT OFFICE.

'WILBUR L. WRIGHT, OF FULTON, NEW YORK.

CAPPING MILK BOTTLES AND'OTHER CONTAINERS.

Original application filed July 12, 1923, Serial No. 650,980. Dividedand this application filed September 15 1926. Serial No. 135,668.

This case constitutes a division of my application filed July 12, 1923,Ser. No. 650,980, now Patent No. 1,603,057, dated October 12, 1926; andthe instant case is devoted to a particular species, under the genericinvention of my said patent; a species that is not specifically claimedby my patent although sufficiently disclosed thereby to enable thechemist tov practice the same.

The object of the instant invention is to utilize my discovery thatso-called insoluble soaps or what I herein term, synthetic Waxes, whencombined with container closure disks, constitute desirable binders, andhence my invention consists in a paper or like material closure or hoodcap disk that embodies a so-called insoluble soap as a binder.

'Referring to the accompanying drawings, forming a part hereof Fig. 1shows a hood cap disk, to be molded over a container mouth to form ahood cap or cover thereon in accordance with my invention.

Fig. 2 shows in plan a paper disk of my invention, to be pressed intohood form on a container mouth, the sheet paper being impregnated throubout with the binder.

Fig. 3 more ordess diagrammatically illus-, trates in side elevation, abottle mouth, a forming head, and in edge view a disk of Figs. 1 or 2 inheated condition to be pressed down and molded on the bottle month byany suitable head diagrammatically illustrated.

Fig. 4 is a side elevation of a bottle head or mouth anda paper hood capsecured thereon in accordance with my invention.

Fig. 5 shows in side elevation, a paper or other sheet fibrous materialcap possessing the characteristics of and embodying my invention, and inskirted orflared hood form for application in such form to containermouths for securing thereon, when softened by'heat, by contraction underthe exterior container mouth rim.-

In carrying out my invention, flat sheet disks 1 are punched or stampedfrom sheet material suc as paper or other fibrous material suitable forthe uses to which the completed disks are to be applied, such asexteriorly capping the mouths of containers. These flat disks 1 are of asize to form a skirted or flanged cover or hood cap, such as 3, thatwill exteriorly cover and protect the mouth ortion of a container, suchas bottle 2, and fit under the shoulder formed by the annular exteriorrim 2*, of the mouth portion'thereof, or otherwise to secure the cap onthe bottle mouth by contraction into a depression or under a projectionat the exterior of the neck.

It is a characteristic of my invention, that by embodying in the disk, abinder of certain characteristics, I can form each disk of a single plyor layer of thin inexpensive fibrous material such as certain commercialpapers or s0-called pulp boards, without building up special materiallayer by layer or otherwise constructing the same in laminated ormulti-ply form to structurally include therein layers of one or morematerials. I have discovered that a sheet of single-ply or comparativelythin flexible commercial paper of one thickness, when carrying any oneor more of several binder substances, meeting certain requirements,distributed throughout such paper, or if only at the portions thereofthat are to perform securing or holding functions, will possess certaincharacteristics necessary for hood cap purposes, under my invention. Forinstance, sheet fibrous material suitable for hood cap purposes,impregnated in whole or in .part with a binder that embodies or iscomposed of any one of certain synthetic waxes or insoluble soaps,possesses characteristics within the spirit and scope of my invention.

I find that sheet paper material th'atembodies any one or more of suchsubstances as a binder remains stiif or set, at the portions treatedtherewith, at atmospheric or climatic temperatures, and becomes soft,pliable or moldable when heated to the necessary high temperatures tofuse or melt the binder in the paper, is sanitary for use on or inconnection with food products, is approximately insoluble in water, iswithout objectionable odor when cool or set, does not attract vermin orinsects, is non-poisonous, does not objectionably foul glass surfaces ofthe cap forming or applying head, is not seriously objectionable incolor, and is of quick setting characteristics.

a The single ply or thin paper material disks or caps can be treatedwith the insoluble soap binders hereinbefore mentioned, by dippin orotherwise applying the hot liquid melted binder to the paper tothoroughly im regnate the same. I prefer to impregnate the paper orsheet fibrous material with the molten binder and drain or otherwiseremove surplus binder from the surface of the paper. As at presentadvised by experience, I Wish to avoid excess exterior coatings ofthebind er on the surfaces of the paper but Wish the binder to fill orimpregnate the body or interior of the paper, as the excess surfacecoatings are but surplusage and when the paper is heated to or above thebinder-melting point such surplus surface coatings are liable to flowtherefrom to adjacent or contacting ob- 'ects.

J The paper disks 1, can be impregnated and thereby rendered normallystifi' at their edge portions only, see 1, Fig. 1, or can be renderednormally stiff throughout by more or less complete impregnation, asindicated by the disk 1, of Fig. 2.

In both forms, however, the disk when softened by heating to or abovethe melting point of the binder, is molded, shaped or pressed on thebottle mouth into hood cap form, by any suitable forming, pressing orSpinning head 5, diagrammatically indicated in the drawings. The hoodcap thus formed on the bottle mouth from the flat disk 1 when softenedby heat, has a usually fiat central portion .7) (Whereon' usually appearcertain exposed display indicia, legends or advertising) and an annulardepending skirt or flange a that is contracted at (Z under the exteriorrim of the bottle mouth, and that quickly sets and becomes stiff or moreor less rigid at climatic or atmospheric temperatures to secure or lookthe hood cap on the bottle mouth. The skirt or flange thus provides theself securing or looking portion at of the hood cover, and it isessential that at least the portion of the paper disk 1 that is to formthis part d of the hood cap, be impregnated with the binder.

The bottlers will purchase these fiat treated paper disks, and will beequipped with proper implements or machines for molding the fiat disks,when softened by heat, directly on the bottle mouths to form the hoodcaps thereon, in such manner that said caps remain locked or secured onthe bottle mouths by the stiff or rigid contracted flanges of the caps.The softened portions of the caps, quickly cool to atmospherictemperatures and quickly become set and rigid sothat removal of the cappreferably requires expansion, rupture or tearing of the flange thereof,although this can be accomplished by the fingers without the use ofspecial or other tools.

Paper or other sheet fibrous material impregnated with or embodyingvarious insoluble soaps or so-called synthetic waxes, possesses thecharacteristics of, and are within the scope of my invention. Suchinsoluble soaps are solids at climatic temperatures and have meltingpoints around 270 I. more or less, and can be composed of hard highmelting point quick setting waxes, among others,

such as Montan, carnauba, or candelilla, or

stearic acid, and other ingredients. For instance, I find thatcompositions about as follows are suitable for the purposes of myinvention, namely (1) Montan wax 500 g. Stcaric acid 270 g. Soda ash.15% g. Magnesium acetate 17 g. Caustic aluminum solution about For usefor my purposes, this composition is mixed with paraflin oil in theproportion of about 20 parts of composition to 1 part oil.

(2) Carnauba Wax 420 g. Stearic acid 420 g. Magnesium acetate 15 g.

Caustic aluminum solution about This composition is also mixed withparaflin oilin about the same proportions as where composition (1) 1sused.

(3) Candelilla wax 160 g. Stearic acid 640 g. Magnesium acetate 10 g.Paraffin 48 g. Caustic aluminum solution about 37 /2 R6 120 c. c.

The proportions of the ingredients of the*- several compositions can bevaried and also equivalent ingredlents can be employed 111 eachcomposition, and I do not wish tohmit my invention to the compositionsas outlined but Wish to cover and include sheet material possessing thecharacteristics of my invention whatever insoluble soap binders suitablefor the purpose, may be included or embodied therein.

In the compositions indicated caustic solutions of other metals thanaluminum can be employed to form an insoluble stearate 0r palmitate (forexample, such as lead).

Paper or other fibrous sheet material of my invention hereinbeforedescribed possessing the characteristics substantially as pointed out,can be put on the market in various forms, and shapes for containercapping and other purposes, and I do not wish to limit all features ofmyinvention to the flat disk form, hereinbefore described.

For instance, in Fig. 5, I show such sheet flared hood cap form, for themarket. These caps 7, of Fig. 5 can be prepared for the market from theflat disks of-Figs. 1 or 2, either impregnated with the binder at thelower edge or securing portions of their skirts or impregnatedthroughout. These flared skirted caps are usually pressed or drawn bydies from commercial sheet paper such as pulp board, as hereinbeforedescribed, and then impregnated with the binder hereinbefore mentioned,as described in connection with the flat disks. Surplus or surfacebinder coating is preferably removed from the skirted caps, before theyare ready for packing and shipment.

These skirted binder carrying caps, are

flared so that they can be nested to reduce the space required forpacking, and also to facilitate the application thereof to bottlemouths. These flared skirted caps are softened by heat before or afterthey are slipped onto the bottle mouths, and while so softened, anysuitable means is utilized to contract the securing impregnated portionsof the cap skirts, to fasten and secure the caps on the bottle months,by the cooling and setting thereof, as hereinbefore described inconnection with the flat binder impregnated disks.

What I claim is:

1. Asheet paper disk for bottle mouth hood at least that portion thatforms the securm part of the cap skirt, embodying an insolu le soap orsynthetic wax.

2. A sheet paper disk for bottle mouth hood capping havmg at least thatportion that forms the securing part of the cap skirt, em-

capping having bodying an insoluble soap including stearic acid and ahigh melting point hard wax.

3. A paper hood cap carrying a water-insoluble soap as a binding medium.

4. A paper hood cap adapted to be bound about a glass bottle head, saidcap carrying a metallic-organic composition as a binder which whensoftened by heating will quickly set to hold the cap in place on thecontainer.

5. A paper hood cap carrying as a binder a water insoluble soap and ahard wax..

6. A paper hood cap for a glass container carrying a binder containing afatty acid and basic material in at least partial combination.

September, 1926.

WILBUR L. WRIGHT;

CERTIFICATE or CORRECTION.

Patent No. 1,111,337.

WILB/UR L.-

Granted April 30, 1929, to

WRIGHT.

it is hereby certified that the above numbered patent was erroneouslyissued to the inventor said "Wright". whereas said of Fulton, N. Y.,

"Oswego Falls Corporation.

patent should have been issued to a Corporation of ,New York", saidcorporation being assigneeof the "entire interest in said invention, asshown by the records of assignments in this office; and that the saidLetters Patent should .be read with this correction therein that thesamemay conform to the record of 4 the case in the Patent Office;

Signed'and sealed this 28thday of May, A, D. 1929.

(Seal) M. J. Moore,

Acting Commissioner of Patents.

Y., this third day of CERTIFICATE OF CORRECTION.

Patent No. 1,7ll,337. Granted April 30, 1929, to

WILBUR L. WRIGHT.

it is hereby certified that the above numbered patent was erroneouslyissued to the inventor said "Wright", whereas said patent should havebeen issued to "Oswego Falls Corporation, of Fulton, N. Y., aCorporation of New York", said corporation being assignee of the entireinterest in said invention, as shown by the records of assignments inthis office; and that the said Letters Patent should be read with thiscorrection therein that the same may conform to the record of the casein the Patent Office.

Signed and sealed this 28th day of May, A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.

